The title. They said that current d2 season is last before D2R. Seasons are usualy half of the year long so thats pretty much confirmation we will have D2R in december when season usualy ends. And i really dont believe they will make D2 season shorter because as they said, its last season before the transfer to D2R so for many its kind of special season they want to enjoy.
And i dont think they will release in middle of D2 season too.
So thats leave us with december.
What do i think about beta? My prediction is 2 week-month closed beta very soon and then two months open beta.